12535201231 has 8 divisors (see below), whose sum is σ = 14343400224. Its totient is φ = 10731366240.

The previous prime is 12535201213. The next prime is 12535201247. The reversal of 12535201231 is 13210253521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12535201231 - 2⁹ = 12535200719 is a prime.

It is a super-2 number, since 2×12535201231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12535201196 and 12535201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12535202231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084840 + ... + 1096333.

It is an arithmetic number, because the mean of its divisors is an integer number (1792925028).

Almost surely, 2^12535201231 is an apocalyptic number.

12535201231 is a deficient number, since it is larger than the sum of its proper divisors (1808198993).

12535201231 is an equidigital number, since it uses as much as digits as its factorization.

12535201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182001.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 12535201231 its reverse (13210253521), we get a palindrome (25745454752).

The spelling of 12535201231 in words is "twelve billion, five hundred thirty-five million, two hundred one thousand, two hundred thirty-one".